Joy Morrissey has said she received financial support from a ‘shadowy’ Conservative dining club for private members to help fight her re-election campaign.

The Tory MP for Beaconsfield declared that she received £3,500 from United and Cecil, which was founded by Winston Churchill in 1949.

Little is known about the club, including who funds it, as it is only required to identify its donors to the Election Commission if they donate more than £7,500.

The organisation is an ‘unincorporated association’, meaning that it does not have to disclose its accounts or a list of its members.

Ms Morrissey was asked this week about the opaque nature of United and Cecil and the fact that public is unable to see who is funnelling money through the club to the Conservative Party.

She told the Bucks Free Press: “All donations received related solely to the general election and were paid to the Beaconsfield Constituency Conservative Association, not to me.

“They have been checked to be eligible donors in accordance with the Electoral Commission’s rules and properly declared by me to my parliamentary register of interests.”

The MP declined to comment on her relationships with the other donors to her local party, all of which were registered in August.

These included £15,000 from Catherine C Martin, £6,000 from Michael Clare and £2,000 from Ramandeep Singh.

United and Cecil’s address was previously listed with the Electoral Commission as 36 Station Road in Uxbridge, just outside Ms Morrissey’s Beaconsfield constituency.